<!doctype html>
<html>
	<head>
		<meta charset="uft-8">
		<title></title>
	</head>
	<body>
		<form>
			<input id="man" type="radio" name="gender" 
			value="男">
			<label for="man">男</label>
			<input id="woman" type="radio" name="gender" 
			value="女">
			<label for="woman">女</label>
			<input id="uk" type="radio" name="gender" 
			value="未知" checked="checked">
			<label for="uk">未知</label>
			<input type="submit" value="提交">
		</form>
	</body>
</html>